Repulsion type moving iron instrument- Deflecting torque
Q. A repulsion type moving iron instrument when used with a.c. circuits, the deflecting torque is- Published on 04 Nov 15a. Directly proportional to the rms current
b. Directly proportional to the square of rms current
c. Directly proportional to the peak current
d. Directly proportional to the square of the peak current
ANSWER: Directly proportional to the square of rms current